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$227+ Cheap flights from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ONT
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Cheap flight deals from Pierre Elliott Trudeau Intl to Ontario

Cheapest flights from Pierre Elliott Trudeau Intl to Ontario
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am
YUL
-
ONT
2 stops13h 12m
Delta
Wed 12/97:00 am
ONT
-
YUL
2 stops13h 37m
Delta
Deal found 7/19$385
This American Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/153:45 pm
YUL
-
ONT
1 stop20h 49m
American Airlines
Sat 8/222:43 pm
ONT
-
YUL
1 stop21h 01m
American Airlines
Deal found 7/20$394
This Delta deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:30 am
YUL
-
ONT
2 stops13h 23m
Delta
Sun 8/2310:00 pm
ONT
-
YUL
1 stop10h 39m
Delta
Deal found 7/20$402
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2112:45 pm
YUL
-
ONT
2 stops14h 03m
Delta
Mon 11/2310:59 pm
ONT
-
YUL
1 stop9h 45m
Delta
Deal found 7/19$403
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:45 pm
YUL
-
ONT
1 stop10h 14m
American Airlines
Tue 8/252:27 pm
ONT
-
YUL
1 stop21h 17m
American Airlines
Deal found 7/19$412
This Delta deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:44 pm
YUL
-
ONT
1 stop12h 08m
Delta
Fri 8/2110:00 pm
ONT
-
YUL
2 stops15h 20m
Delta
Deal found 7/18$420
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:44 pm
YUL
-
ONT
1 stop12h 17m
Delta
Tue 10/2012:18 pm
ONT
-
YUL
1 stop8h 41m
Delta
Deal found 7/19$439
This oojo deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:15 am
YUL
-
ONT
2 stops37h 06m
WestJet
Sat 8/156:20 am
ONT
-
YUL
2 stops21h 45m
WestJet
Deal found 7/18$450
This United Airlines deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:55 pm
YUL
-
ONT
2 stops22h 17m
United Airlines
Sat 8/291:18 pm
ONT
-
YUL
2 stops22h 22m
United Airlines
Deal found 7/20$451
This oojo deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:15 am
YUL
-
ONT
2 stops42h 25m
WestJet
Wed 9/306:20 am
ONT
-
YUL
2 stops21h 45m
WestJet
Deal found 7/20$454
This oojo deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:30 pm
YUL
-
ONT
2 stops32h 15m
WestJet
Thu 8/2011:56 am
ONT
-
YUL
2 stops16h 09m
WestJet
Deal found 7/20$455
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:44 pm
YUL
-
ONT
1 stop12h 08m
Delta
Sun 8/2310:00 pm
ONT
-
YUL
1 stop10h 39m
Delta
Deal found 7/19$457

Find flight deals from Pierre Elliott Trudeau Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$385
(Delta)

One-way from

$227
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$477
Provider with most accurate pricing for Montreal Pierre Elliott Trudeau Intl-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montreal Pierre Elliott Trudeau Intl-Ontario flights.
Search Deals
From Montreal Pierre Elliott Trudeau Intl to Ontario
Search Deals
One-way flight from Montreal Pierre Elliott Trudeau Intl to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 23, 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 8/14

12:44 pm-9:52 pm

1 stop12h 08m

Ontario

Fri 8/21

10:00 pm-4:20 pm

2 stops15h 20m

$420

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 9/12

9:45 am-8:01 pm

2 stops13h 16m

Ontario

Tue 9/15

1:56 pm-1:09 pm

2 stops20h 13m

$451

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

4:55 pm-10:35 pm

1 stop8h 40m

Ontario

Sat 9/19

7:00 am-9:26 pm

1 stop11h 26m

$451
Quickest round-trip

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Sat 9/5

4:55 pm-10:35 pm

1 stop8h 40m

Ontario

Tue 9/22

7:00 am-5:30 pm

1 stop7h 30m

$490

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 8/21

4:55 pm-10:35 pm

1 stop8h 40m

Ontario

Sun 8/30

7:13 pm-8:16 am

1 stop10h 03m

$498

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Thu 8/13

12:44 pm-9:52 pm

1 stop12h 08m

Ontario

Sun 8/23

10:00 pm-11:39 am

1 stop10h 39m

$517

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 10/16

6:35 pm-10:23 am

1 stop18h 48m

Ontario

Wed 10/21

1:52 pm-8:16 am

1 stop15h 24m

$517

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 8/7

9:45 am-10:51 pm

1 stop16h 06m

Ontario

Mon 8/10

1:50 pm-10:40 am

2 stops17h 50m

$521

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 9/4

4:55 pm-10:35 pm

1 stop8h 40m

Ontario

Mon 9/7

7:13 pm-8:16 am

1 stop10h 03m

$521

MontrealOntario

YUL - ONT

YULONT

Montreal Pierre Elliott Trudeau Intl

Fri 9/4

2:46 pm-9:52 pm

1 stop10h 06m

Ontario

Wed 9/16

12:17 pm-11:50 pm

1 stop8h 33m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Showing 1-10 of 23 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montreal Pierre Elliott Trudeau Intl Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montreal Pierre Elliott Trudeau Intl Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Pierre Elliott Trudeau Intl to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Pierre Elliott Trudeau Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Montreal Pierre Elliott Trudeau Intl?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Montreal Pierre Elliott Trudeau Intl. On average, Ontario has 0 inbound flights from Montreal Pierre Elliott Trudeau Intl per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario?

    A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Ontario can take about 12h 08m. Delta provides one of the quickest options available for as low as $420. The distance between Montreal Pierre Elliott Trudeau Intl Airport and Ontario is about 2423 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Pierre Elliott Trudeau Intl to Ontario that include hotel bookings?

    Yes. In addition to deals on Pierre Elliott Trudeau Intl to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Pierre Elliott Trudeau Intl to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to Ontario.

  • Can I find deals for business class flights from Pierre Elliott Trudeau Intl to Ontario?

    Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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